I'm going to try and install all new speakers doors . Tweeter if can find better placement . And I read years back you can replace the 4x10s in back with 6x9 with adapter of some kind . Has anyone came across these. I'm new at the forum I have replaced alot of stuff I could add to forum knowledge hopefully. Fuel pump water pump . Soon to be Brake lines and engine oil cooler lines ( there's a nasty fix ) and to add I live in Minnesota Rust is a constant battle with everything..